lp.parse
Enum LpTokenType

java.lang.Object
  java.lang.Enum<LpTokenType>
      lp.parse.LpTokenType

All Implemented Interfaces:

Serializable, Comparable<LpTokenType>

public enum LpTokenType
extends Enum<LpTokenType>

Enumeration of token types returned by a LpLexer and further used by parsers to parse source code.

Version:

1.0.0

Author:

Martin Slota

See Also:

LpLexer.getTokenType()

Enum Constant Summary

COMMA
A comma.

DOT
A dot.

EOF
Returned when the end of input is reached.

LEFT_PAREN
A left parenthesis.

LOWERCASE_WORD
Any string of letters, numbers and underscores not beginning with an uppercase letter.

RIGHT_PAREN
A right parenthesis.

RULE_ARROW
An arrow separating a rule's head from a rule's body.

UNKNOWN_CHAR
Everything that does not fit into some of the previous categories is identified as this token type.

UPPERCASE_WORD
Any string of letters, numbers and underscores beginning with an uppercase letter.

Field Summary

private String

description Description of the token.

Method Summary

String	getDescription() Getter method for the description.
static LpTokenType	valueOf(String name) Returns the enum constant of this type with the specified name.
static LpTokenType[]	values() Returns an array containing the constants of this enum type, in the order they're declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

LEFT_PAREN

public static final LpTokenType LEFT_PAREN

A left parenthesis.

RIGHT_PAREN

public static final LpTokenType RIGHT_PAREN

A right parenthesis.

COMMA

public static final LpTokenType COMMA

A comma.

DOT

public static final LpTokenType DOT

A dot.

RULE_ARROW

public static final LpTokenType RULE_ARROW

An arrow separating a rule's head from a rule's body.

LOWERCASE_WORD

public static final LpTokenType LOWERCASE_WORD

Any string of letters, numbers and underscores not beginning with an uppercase letter. See LpLexer for details.

UPPERCASE_WORD

public static final LpTokenType UPPERCASE_WORD

Any string of letters, numbers and underscores beginning with an uppercase letter. See LpLexer for details.

EOF

public static final LpTokenType EOF

Returned when the end of input is reached.

UNKNOWN_CHAR

public static final LpTokenType UNKNOWN_CHAR

Everything that does not fit into some of the previous categories is identified as this token type.

Field Detail

description

private final String description

Description of the token.

Method Detail

values

public static final LpTokenType[] values()

Returns an array containing the constants of this enum type, in the order they're declared. This method may be used to iterate over the constants as follows:

for(LpTokenType c : LpTokenType.values())
        System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they're declared

valueOf

public static LpTokenType valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

getDescription

public String getDescription()

Getter method for the description.

Returns:

token type description